I must valve you must valve she must valve we must valve you must valve they must valve
Forme en V-ing
I must be valving you must be valving she must be valving we must be valving you must be valving they must be valving
Perfect
I must have valved you must have valved she must have valved we must have valved you must have valved they must have valved
Perfect en V-ing
I must have been valving you must have been valving she must have been valving we must have been valving you must have been valving they must have been valving
Négation
Forme simple
I mustn't valve you mustn't valve she mustn't valve we mustn't valve you mustn't valve they mustn't valve
Forme en V-ing
I mustn't be valving you mustn't be valving she mustn't be valving we mustn't be valving you mustn't be valving they mustn't be valving
Perfect
I mustn't have valved you mustn't have valved she mustn't have valved we mustn't have valved you mustn't have valved they mustn't have valved
Perfect en V-ing
I mustn't have been valving you mustn't have been valving she mustn't have been valving we mustn't have been valving you mustn't have been valving they mustn't have been valving
Forme interrogative
Forme simple
must I valve? must you valve? must she valve? must we valve? must you valve? must they valve?
Forme en V-ing
must I be valving? must you be valving? must she be valving? must we be valving? must you be valving? must they be valving?
Perfect
must I have valved? must you have valved? must she have valved? must we have valved? must you have valved? must they have valved?
Perfect en V-ing
must I have been valving? must you have been valving? must she have been valving? must we have been valving? must you have been valving? must they have been valving?
Forme interro-négative
Forme simple
mustn't I valve? mustn't you valve? mustn't she valve? mustn't we valve? mustn't you valve? mustn't they valve?
Forme en V-ing
mustn't I be valving? mustn't you be valving? mustn't she be valving? mustn't we be valving? mustn't you be valving? mustn't they be valving?
Perfect
mustn't I have valved? mustn't you have valved? mustn't she have valved? mustn't we have valved? mustn't you have valved? mustn't they have valved?
Perfect en V-ing
mustn't I have been valving? mustn't you have been valving? mustn't she have been valving? mustn't we have been valving? mustn't you have been valving? mustn't they have been valving?